Car-coupling.



No. 942,071. I PATENTED JAN. 22, 1907.

M. A. BROWN. @AR GOUPLING. t APPLICATION FILED 15110.30, 1905.

2 SHEETS-SHEET 1.

nfl l @umu 1. .ali wir? www "nlm IIIIIHMNIHIIM PATENTED JAN. 22, 1907.

M. A. BROWN. GAR GOUPLING. APPLICATION FILED DBO. 30,1905.

z SHBETSQSHB'BT 2.

' WITNESSES 4 INVEN'Ton UNITED sTATEs PATENT OEEIOE.

HALF TO D. G. PURSE, JR.

, OF SAVANNAH, GEORGIA.

CAR-COUPLING.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed December 30,1905, Serial No 293.966.

T LH T:f77/m72, it 711,114) concern:

vannah, in the county of Chatham and State of Georgia, have invent-ed a new and useful Improvement 1n Car-Couplers, of which the Q following is a specification.

' This inventlon relates. to an improvement in car-couplers, and especially to an auto-v lnaticlocking ineans applied to the car-coupler for which I tiled application -for Letters Patent July 24, 1905, Serial'No. 271.066.

The object of this improvement is to pro?` vide means for locking the knuckle to the coupler-head independent of the pivot-pin, thereby preventing' the uncoupling of the cars in case the pivoted pin ,connectingthe knuckle and coupler should break or become lost.

The invention consists of the' novel features of construction hereinafter fullv de' the draw-bar, the knuckle being in openpee sition. Fig-4 is an elevation showingvthe inner face of the knuckle. Fig. 5 vshows detail views illustrating portions vof. the knuckle and coupler-head and showing the means to which this application especially relates, the

.showing a upper1 view being an inverted perspective, ortion ofthe lower face of the knuckle andknuckle-arin and {inge-r,4 and. the lower view beingk a perspective ofthe lower portion of one side of the coupler-head, a porof the same being in section. Fig. 6 is a plan view illustrating diagramlnatically the portion of the coupler-head shown in perspective in the lower part of Fig. 5 and showing the diagonal direction taken by a recess formed in the coupler-head lug.

Thegeneral construction of. this coupler is as a'whole similar to that oftheecoupli" shown in rny application for. atent above re ferred to.- It includes a' hol ow draw-barA,

.a coupler-head A, and a detachable knuckle B. The coupler-headl A is provided with l parallel 'lugs Albin vertical alineinentwith Beitknownthatl,MARKANTHOXYBROWN, a citizen of the United States, residing at Se:

each other and suitably perforated to receive a pivoted pin A3 for the purposeof pivoting l the knuckle B to the coupler-head.

The knuckle-B comprises the verticallyarm B3, which is recessed upon its inner face, :is shown at B4, and the arm B carries a iinger'B" upon its inner face, which extends i downwardly and inwardly and which is cut awa)v adjacent its end upon the inner side to forni a locking-shoulder B, The knucklearin is also provided upon its 'upper land lowerfaces with vertical shoulders B7, vwhich are wedge-shaped in cross-section and which terminate short of the knuckle-head B', thereby leaving a slight space between the knuckle-head and the shoulders B7.v The knuckle B abovedescribed'is substantially the saine as shown in my application above referred to, with the exception of the shoulder B, formed on the knuckle-finger B5, and

B of the fingerB engages therear endof the ."shoulder A* when the knuckle B is in acl'osed positionsk fllhe' opposing faces of the lugs A2 are. recessed, as"slrownat, to receive the shoulders B'. The recesses A vhave curved as the knuckle B swingsfroin a closed to an open position.v Both tlie outline of one of these shoulders and the curved wall A of one of the recesses A5 are shown in dotted lines in Fig. 3,

` ltwill be obvious from thv drawings and the above description of `construction that when the knuckle is in a closed position the breaking of the vpin A3 or its entire removal it wouldbe held in closed position by the enf gageinentef ,the shoulders A4 and B and vpatent above referred to.- I

pin E is lifted by rotation of a rod l and the lifting 'ci' an arm l, to which the pin E is connected by a suitable eh ain, the knuckle is arranged knuckle-head Bf, which carries an walls A5, against which' the shoulders B7 slide" will not permit the knuckle to free itself, as

the shoulders B7, formed upon the knuckleand, as is clearly shown inFig. 3, the shoulder IOO also b v a locking-pin E, constructed and` `foperatingjas described 1n. the application for When the locking forced into an open position by a spring C, also described in my above-mentioned application, and whilel in such open position the knuckle B cannot be withdrawn even in the absence of the pin A3, except by an outward pull in a lateral direction by reason of the shoulders B7 being in engagement with the diagonally-extending recesses A5, the curvature of tne recesses A5 and of the shoulders B7 being such that when the knuckle'is in open position the shoulders B7 can be disengaged from the recesses only by a swinging or lateral movement of the knuckle and will not disengage by a direct pull. effect also increased by the wedge-shaped formation of the shoulders B7. The knucklehead B is also provided with a vertical perforation B2, through which an ordinary coupling-pin may be run when a car having a coupler of this type is to be connected to a car provided only with one of the old pinand-link type of couplers.

In' Fig. 3 l have shown a horizontal section through the knuckle and head, showing the knuckle in its open position and showing the spring C having its free end portion bearing on the knuckle, and it will be noted that in this position the spring is slightly spaced from the adjacent Wall of the coupler-head. It willvbe further noted that the tendency of this spring, which bears directly on the inner end portion of the arm B3 of the knuckle B, is to force the knuckle into a still further open position, Which tendency is resisted and overcome by the shape of the knuckle, which Willswing .into open position only to the extent shown, the shoulders B7 locking .in the recesses A5. l y inward to a closed position without forcing the spring C fiat against the adjacent wall oi the coupler-head,i t will remain in open position until closed by force. It will also be obvious that any closing 'movement must be accompanied. 'by a rotation of the knuckle on its pivot-pin, and during such rotation the spring C is in continual engagementwith the knuckle and acts as a brake band. thus This locking' As the knuckle cannot move;

further insuring the knuckle against accidental closing by jars or the like.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A coupler ofthe kind described comprising a coupling-head, lugs carried by said head in vertical alinement and recessed upon their opposing faces, a knuckle comprising a knuckle-head, a knuckle-arm, curved wedgeshaped shoulders formed on opposite sides of said arm and extending lengthwise thereof adapted to work in the recesses of the lugs,

-an outwardly-extending shoulder' 'formed within the coupler-head, an outwardly and inwardly extending finger carried by the knucklearm and adapted to engage and lock with the shoulder of the coupling-head when the knuckle is in a closed position, and means for pivoting the knuckle to the coupler-head.

2. In a car-coupler, a coupler having an interior shoulder arranged upon one side, lugs arranged upon the same side and in vertical alinement, said lugs being perforated to receive a pivoted pin, recesses having curved end walls being formed upon the opposing faces of said lugs, a knuckle having an arm adapted to lit between said lugs, a pivoted pin passing through the lugs and arm, wedgeshaped shoulders formed on the upper and lower faces ofthe arm and adapted to move within the `recesses of the lugs and to slide upon the curved walls of said recesses when the knuckle swings into open position, the outer faces of said shoulders being continuous with the outer face of the knuckle, and a iinger downwardly and inwardly inclined carried by the inner faces of the knuckle-arm, said finger terminating in a shoulder adapted to engage the rear face of the shoulder formed in the coupler-head when the knuckle is in a closed position.

.MARK ANTHONY BROWN,

Witnesses:

Y HENRY Humain-irri.1

A. L. CHAPEAU. 

